Hi Ernst,
Congratulations, nice presentation, reads smoothly! Important “to the point” scientific information for the amateur!
Your article on page 24 concerning P Cygni is a nice example of how the VV Cep campaign philosophy can evolve especially for the correction of the H-alpha line fluxes in respect to the M star continuum. Therefore we need of course photometry data of an eligible standard star.
Keep up this excellent magazine!
Will it stay free downloadable in the future?
Success!
Kind regards,
Marc.
P.S. Suggestion on the article on page 8: fig.3 instead of “erlaubte” simply “Energieübergänge” to avoid misinterpretations.